To Replace Mower Drive Belt; Front-To-Back Adjustment; Mower Drive Belt Removal; Mower Drive Belt Installation - Craftsman 917.273664 Owner's Manual

Suspension
Arm
Lift Link
ustment
Nut
FRONT-TO-BACK ADJUSTMENT
IMPORTANT: Deck must be level side-
to-side. If the following front-to-back
adjustment is necessary, be sure to adjust
both front links equally so mower will stay
level side-to-side.
To obtain the best cutting results, the
mower blades should be adjusted so the
front tip is approximately 1/8" to 1/2" lower
than the rear tip when the mower is in its
,_ghest position.
CAUTION: Blades are sharp. Protect
your hands with gloves and/or wrap blade
with heavy cloth.
Check adjustment on right side of tractor.
Position any blade so the tip is pointing
straight forward. Measure distance "B" at
front and rear tip of blade
, Before making any necessary adjust-
ments, check that both front plate links
are equal in length.
, If links are not equal in length, adjust
one link to same length as other link.
• To lower front of blade, loosen nut "C"
on both front links an equal number of
turns.
NOTE: Each full turn of nut "C" will
change dim. "B" by approximately 3/16".
, When distance "B" is 1/8" to 1/2" lower
at front than rear, tighten nut "D" against
trunnion on both front links.
, To raise front of mower, loosen nut
"D" from trunnion on both front links.
Tighten nut "C" on both front links an
equal number of turns. The two front
links must remain equal in length.
, When distance "B" is 1/8" to 1/2" lower
at front than rear, tighten nut "D" against
trunnion on both front links.
, Recheck side-to-side adjustment.
q_.°o\_ I o o/Blade
21
BOTH FRONT PLATE LINKS MUST BE
EQUAL IN LENGTH
Nut "D"_
Trunnion __
Front Plate Assembly
Nut "C"
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL
1. Park tractor on a level surface. Engage
parking brake.
2. Lower mower to its lowest position.
3. Disengage belt tension rod from lock
bracket.
,4_CAUTION: Rod is spring loaded. Have
a firm grip on rod and release slowly.
4. Remove screws from R.H. mandrel
cover and remove cover.
5. Remove any dirt or grass clippings
which may have accumulated around
mandrels and entire upper deck sur-
face.
6. Disconnect R.H. suspension arm from
rear deck bracket by removing retainer
spring.
7. Carefully roll belt over the top of R.H.
mandrel pulley.
8. Remove belt from electric clutch pulley.
9. Remove belt from idler pulleys.
10. Check primary idler arm and two idlers
to see that they rotate freely.
11. Be sure spring is securely hooked to
primary idler arm and spring arm.
MOWER DRIVE BELT INSTALLATION
12. Install belt in both idlers.
13. Install new belt onto electric clutch pul-
ley.
14. Carefully roll belt into upper groove of
R.H. mandrel pulley.
15. Carefully check belt routing making
sure belt is in the grooves correctly.
16. Reconnect R.H. suspension arm to
rear deck bracket with retainer spring.
17. Reassemble R.H. mandrel cover.
18. Engage belt tension rod by pushing
rod into locking bracket.